The Denon S-32 is a versatile unit that contains an AM-FM radio, iPod / iPhone dock, Internet streaming radio, uPNP streaming music from a local computer or storage device, and Rhapsody player. I have had opportunity to check out most of the features except for Rhapsody, with some comments below:
AM-FM requires use of included external antennas. FM reception is adequate, but not as good as other FM radios I own; I have not really had much reason to test the AM section. The AM-FM section feels like an afterthought, but may come in handy on occasion.
iPod / iPhone Dock - iPod dock works great with my 6th Gen. Classic, and work but will not charge my iPhone 3G. The major functions I use most often (artist / album / genre, shuffle, playlists) work seamlessly on the Denon.
Internet Streaming - the S-32 gets its list of Internet station from the 3rd party vTuner service through the radiodenon web site. There are an estimated 7000 stations / podcats available, and the radiodenon site allows users to manually add stations missing from the current list or suggest additions to VTuner. I asked vTuner about the availability of a specific ESPN podcast that was missing, and received a response within a day that the podcast would be added to the list. I'm hoping I can figure out a way to add channels like Live365 / Slacker / Pandora that are available on the competing
Logitech Squeezebox Boom Wi-Fi Internet Radio, but even without these I cannot complain about the variety of channels available. (Note: the S-32 can currently listen to stations in MP3 and WMA format; Real streams like the BBC feeds are not available.)
uPNP Streaming - I was able to connect the S-32 to my music library on a Synology Network Attached Storage (NAS) with uPNP server. Unfortunately, this feature does not support shuffle play and is slower / clunkier than using my iPod with the same music files. I also had several instances where the S-32 was unable to connect to the uPNP server or rebooted while trying to do so.
*Edit - the Denon S-32 documentation does not note any compatibility with uPNP, but instead specifies a computer running XP and WMP 11. I'll let others reviewers note how the Denon works with the recommended music server setup.
Sound - usually quite good considering the physical size of the unit, but on some music the sound can get a get "boomy." This unit would benefit greatly from some sort of bass and treble adjustment.
Other - this unit is a beast, weighing in at over 13 pounds, and has no battery option; I will lug it out to my patio or garage on occasion, but this unit is best as a stationary tabletop radio. The remote is fine, and the backlit display is a nice feature.
Overall - I'm pleased with feature set of the S-32, though I'm hoping that future firmware updates will improve the performance of uPNP streaming. It certainly helped that I was able to take advantage of a great Black Friday deal on the S-32, but even at regular price it is worth a look. Compare this radio to the Logitech Squeezebox products and see what features of each appeal to you.
Edit - I've now had the opportunity to compare this to the Squeezebox Boom. The Denon can get louder before distorting, though at moderate volume levels both sound pretty good. It also has an iPod dock the Squeezebox lacks. But the Squeezebox is more portable, has a better display, includes bass and treble adjustments, offers services like Live365 and the BBC that the Denon lacks, and IMHO has a much better user interface. The Squeezebox also does such a good job at streaming my music collection that an iPod doesn't really seem necessary anymore. The Denon is still a 4-star unit, but in comparison the Squeezebox Boom gets a solid 5 stars from me.